I suggest that the first thing you do is to find out what you can do in the community. Your husband may support you since you have supported him. You can start with a school in the community by checking with a school counselor about a program for what you want to do. Or find a job agent to help you to land a job. Once you start to build up your own life, you will find out about yourself and whether you and your husband are compatible or not. You don't need to rush to leave him but it will be hard work if you go to school/work with a son and etc.
I think it is more clever to start small and then if you see that you guys are not compatible, then you will go there.